Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
11
pubmed:dateCreated
2004-10-25
pubmed:abstractText
Sitaxsentan, a highly selective endothelin-A (ET(A)) receptor antagonist (6500-fold more selective for ET(A) receptors than endothelin-B (ET(B)) receptors), may benefit patients with pulmonary artery hypertension (PAH) by blocking the vasoconstrictor effects of ET(A) receptors while maintaining the vasodilator/clearance functions of ET(B) receptors. In its first randomised, placebo-controlled study, Sitaxsentan to Relieve Impaired Exercise-1 (STRIDE-1), sitaxsentan improved exercise capacity assessed by 6 min walk, New York Heart Association functional class, cardiac index and pulmonary vascular resistance in New York Heart Association class II, III and IV patients with idiopathic PAH, PAH related to connective tissue disease or PAH related to congenital heart disease. In STRIDE-1, doses of 100 and 300 mg/day p.o. were evaluated. Although both doses showed equivalent efficacy, the lower dose had a more tolerable safety profile. Additional studies are ongoing to assess the relative safety and efficacy of 50 and 100 mg/day doses, both in de novo patients and in patients previously treated with the ET(A)/ET(B) receptor antagonist bosentan. Long-term comparative studies are necessary to determine whether there is a clinically meaningful difference between selective ET(A) receptor antagonism and ET(A)/ET(B) receptor antagonism.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Nov
pubmed:issn
1744-7658
pubmed:author
pubmed:issnType
Electronic
pubmed:volume
13
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1483-92
pubmed:dateRevised
2008-6-5
pubmed:meshHeading
pubmed:year
2004
pubmed:articleTitle
Sitaxsentan, a selective endothelin-A receptor antagonist for the treatment of pulmonary arterial hypertension.
pubmed:affiliation
Center for Advanced Cardiac Care, Division of Cardiology, PH-12, 622 West 168th Street, New York, NY 10032, USA. emh3@columbia.edu
pubmed:publicationType
Journal Article